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Note 3 - Investment Securities
9 Months Ended
Sep. 30, 2019
Notes to Financial Statements  
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Note
3
— Investment Securities
 
We invest in Class L shares of the JPMorgan Managed Income Fund.  The JPMorgan Managed Income Fund has an average maturity of approximately
one
year, duration of approximately
six
months, and approximately
7%
of such fund’s holdings are AAA-rated with
0%
non-investment grade rated. 
 
Investment securities consisted of the following (in thousands):
 
   
September 30,
   
December 31,
 
   
2019
   
2018
 
   
Fair value
   
Cost
   
Fair value
   
Cost
 
JPMorgan Managed Income Fund
  $
40,374
    $
40,238
    $
72,453
    $
72,567